| Patents for C07B 53 - Asymmetric syntheses (6,231) |
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| 05/13/2004 | WO2004024684A3 Enantioselective amination and etherification |
| 05/13/2004 | US20040092779 Comprising aromatic polyolefin having oxyalkyleneoxyaryl group; solvent and heat resistance; handling |
| 05/13/2004 | US20040092388 Chemical and enantiomorph selectivity; high catalytic activity |
| 05/12/2004 | EP1418170A2 Process for the preparation of optically active amino alcohols by optical resolution |
| 05/12/2004 | EP1417199A1 Novel modifications of the trometamol salt of r-thioctic acid and method for producing the same |
| 05/12/2004 | EP1341785A4 HYDROLYSIS OF R(R*,R*)]-2-(4-FLUOROPHENYL)-$g(b),$g(d) -DIHYDROXY-5-(1-METHYLETHYL)-3-PHENYL-4- (PHENYLAMINO)CARBONYL]-1H-PYRROLE-1-HEPTANOIC ACID ESTERS WITH CALCIUM HYDROXIDE |
| 05/12/2004 | EP1131279B1 Industrial process for the production of l-carnitine |
| 05/12/2004 | CN1496345A Chain oligolactic acid ester |
| 05/12/2004 | CN1495189A Preparation method of phosphite ester and transition metal complex |
| 05/12/2004 | CN1495164A Method for preparing chiral lactone |
| 05/06/2004 | WO2004037838A1 Preparation of partially hydrogenated rac-ansa-metallocene complexes |
| 05/06/2004 | WO2004037760A2 Process for producing optically active 2-alkoxy-1-(trifluoromethyl-substituted phenyl)ethanol derivatives |
| 05/06/2004 | WO2003084942A3 Stereoselective alkylation of chiral 2-methyl-4-protected piperazines |
| 05/06/2004 | US20040087437 Crown ether and perfluorinated sulfonyl lead derivative; high yield and optical selectivity under mild conditions; water tolerance; simple |
| 05/06/2004 | EP1414569A2 Optically active catalysts comprising salen ligands and vanadium(iv), their preparation and use in the production of cyanhydrines |
| 05/06/2004 | EP1414463A1 Asymmetric synthesis of kavalactones |
| 05/06/2004 | EP1414384A2 Synthesis of epothilones and relates analogs |
| 05/06/2004 | EP1335911B1 Synthesis of r(+)alpha-lipoic acid |
| 05/06/2004 | EP1233828B1 Chiral catalysts for asymmetric acylation and related transformations |
| 05/06/2004 | DE10250025A1 Production of new partially hydrogenated metallocene complexes, useful as catalysts for the polymerization of olefins, comprises reaction of transition metal complexes with cyclopentadienyl derivatives and hydrogenation |
| 05/05/2004 | CN1494532A New asymmetric process for preparation of diarylmethylpiperazines derivatives and novel asymmetric diarylmetylamines as intermediates |
| 05/05/2004 | CN1494524A Process for stereo selective synthesis of prostacyclin derivatives |
| 05/05/2004 | CN1494456A Osmium oxide deposited on hydrophilic polymer support |
| 05/05/2004 | CN1493576A Chiral diphosphorus compound and its transition metal compounding product |
| 05/04/2004 | US6730629 Asymmetric phosphine ligand |
| 05/04/2004 | CA2295993C Novel stereoselective processes for the preparation of gabapentin analogues |
| 04/29/2004 | WO2004035208A1 Mixtures of chiral monophosphorus compounds used as ligand systems for asymmetric transition metal catalysis |
| 04/29/2004 | WO2003003972A3 Kinetic resolution of a intermediate useful in the production of benazepril and analogues thereof |
| 04/29/2004 | US20040082820 Hydrogen transfer reduction; useful as intermediate for production of pharmaceuticals/agricultural chemicals |
| 04/29/2004 | US20040082809 Reacting an anhydride with an alcohol; partial esterification |
| 04/29/2004 | US20040082796 Reacting a substituted benzonitrile with a cysteine compound |
| 04/29/2004 | US20040082647 Anticholesterol agents; controlling bile acid transfer into intestines |
| 04/29/2004 | US20040082625 Osteoporosis, bone disorders |
| 04/29/2004 | DE10247633A1 Mischungen von chiralen Monophosphor-Verbindungen als Ligandensysteme für die asymmetrische Übergangsmetallkatalyse Mixtures of chiral mono-phosphorus compounds as ligands for asymmetric systems transition metal catalysis |
| 04/28/2004 | EP1413307A1 Therapeutically active levorotatory and dextrorotatory 1-(4-chlorophenyl)phenylmethyl piperazines |
| 04/28/2004 | EP1412323A1 Protected 3,5-dihydroxy-2,2-dimethyl-valeronitriles for the synthesis of epothilones and derivatives and method for the production and use thereof |
| 04/28/2004 | EP1200384B1 2-alkyl-5-halogen-pent-4-ene carboxylic acids and their production |
| 04/28/2004 | EP1107936B1 Copper-catalysed enantioselective allylic substitution reactions |
| 04/28/2004 | CN1147462C Improved process for preparation of non-hydroscopic salts of L(-)-Carnitine |
| 04/27/2004 | US6727377 Asymmetric catalysis based on chiral phospholanes and hydroxyl phospholanes |
| 04/27/2004 | US6727098 Circular dichroism |
| 04/22/2004 | WO2003041728A9 Novel phenyl-propargylether derivatives |
| 04/22/2004 | US20040077861 Asymmetric addition of organometallic compounds to chiral sulfinimine to give adducts in predominantly one diastereomer can subsequently be transferred into pure enantiomers of by cleavage of the chiral auxilliary |
| 04/22/2004 | US20040077059 Process for the preparation of enantiomerically enriched esters and alcohols |
| 04/21/2004 | EP1409691A2 Stereoselective preparation of cyclic l-amino acids |
| 04/21/2004 | EP1409493A1 Method for producing non-chiral organic compounds containing optically active hydroxy groups |
| 04/21/2004 | EP1409467A1 Synthesis of udp-glucose: n-acylsphingosine glucosyltransferase inhibitors |
| 04/21/2004 | EP1409453A1 Novel diamines having a casr modulating activity |
| 04/21/2004 | EP1409125A1 Microencapsulated catalyst, methods of preparation and methods of use thereof |
| 04/21/2004 | EP1409122A2 Catalytic compositions and methods for asymmetric aldol reactions |
| 04/21/2004 | EP1326846A4 Process for preparation of integrin receptor antagonist intermediates |
| 04/21/2004 | EP1200387B1 Process for the cis-selective catalytic hydrogenation of cyclohexylidenamines |
| 04/21/2004 | EP1154987B1 Phenylalaninol derivatives |
| 04/20/2004 | US6723871 Asymmetric reduction of a beta-keto ester in the presence of a ruthenium-diamine complex |
| 04/20/2004 | US6723868 Process for the preparation of aminoalcohol derivatives and their further conversion to (1R,4S)-4-((2-amino-6-chloro-5-formamido-4-pyrimidinyl)-amino)-2-cyclopentenyl-1-methanol |
| 04/15/2004 | WO2004031198A1 Enantioselective reductive methods using chiral organostannanes |
| 04/15/2004 | US20040072845 Enantiomers of 1-[ (4-chlorophenyl) phenylmethyl ] -4-[ (4-methylphenyl) sulfonyl] piperazine |
| 04/15/2004 | US20040072680 Chiral phosphorus cyclic compounds for transition metal-catalyzed asymmetric reactions |
| 04/15/2004 | DE10246740A1 Catalyst composition, useful for metal-catalyzed reactions e.g. asymmetric hydrogenation, comprises protein and interacting catalytic unit that includes a transition metal |
| 04/14/2004 | EP1406860A1 Process for the preparation of 7-amino syn 3,5-dihydroxy heptanoic acid derivatives via 6-cyano syn 3,5-dihydroxy hexanoic acid derivatives |
| 04/14/2004 | EP1305270B1 Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids |
| 04/14/2004 | EP1200419B1 Aminothiazole derivatives and their use as crf receptor ligands |
| 04/14/2004 | CN1488760A Asymmetric synthesis method of antimer chiral silicon cyan aloohol |
| 04/13/2004 | US6720454 Process for the cis-selective catalytic hydrogenation of cyclohexylidenamines |
| 04/13/2004 | US6720439 Synthesis of ruthenium-hydride complexes and preparation procedures of chiral alcohols and ketones |
| 04/13/2004 | US6720434 Process for preparing chiral compounds from recemic epoxides by using chiral salen catalysts |
| 04/13/2004 | US6720357 Sulfonamide derivatives |
| 04/13/2004 | US6720281 Chiral phosphorus ligands and the use thereof in the production of optically active products |
| 04/08/2004 | WO2003097622A3 Synthesis of 2-alkylcysteines, 2-(hydroxylated phenyl)-4-alkylthiazoline-4-carboxylic acids and derivatives thereof |
| 04/08/2004 | WO2003092578A3 Further syntheses of cyproterone acetate |
| 04/08/2004 | US20040068140 Preparation of mandelic acid derivatives |
| 04/08/2004 | US20040068126 Such as, hydrogenation, hydride transfer, allylic alkylation, hydrosilylation, hydroboration, hydrovinylation, hydroformylation, olefin metathesis, hydrocarboxylation, isomerization, cyclopropanation, Diels-Alder reaction, etc. |
| 04/08/2004 | US20040068123 Introduction of t-butyldimethylsilyl(TBDMS) group as an alcohol protection group and construction of deprotection reaction condition not to produce by-products promise highly pure production of simvastatin |
| 04/08/2004 | US20040068068 Optically active polymer with epoxide functions, method for preparing same, and use thereof |
| 04/08/2004 | US20040067969 Syntheses of quinazolinones |
| 04/08/2004 | US20040067928 Substituted propane-1,3-diamine derivatives and the pharmaceutical use thereof |
| 04/07/2004 | EP1404700A2 Process for the production of 6,7-dihydroxy steroid compounds by allylic oxidation of steroid-5-ene compounds to steroid-5-ene-7-one compounds followed by hydroboration and oxidation and intermediates of this process |
| 04/07/2004 | EP1404645A2 Method for producing optically active cyanohydrins and their corresponding acids |
| 04/07/2004 | EP1404642A2 Synthesis and intermediates |
| 04/07/2004 | EP1404639A1 Process for the preparation of intermediates useful in the synthesis of statin derivatives especially 7-amino 3,5-dihydroxy heptanoic acid derivatives, and intermediates thereof |
| 04/07/2004 | EP1292602B1 New chiral salen catalyst and methods for the preparation of chiral compounds from racemic epoxides by using new catalyst |
| 04/07/2004 | EP1131270B1 Process for converting an alcohol to the corresponding fluoride |
| 04/07/2004 | CN1144878C Process for preparing optically pure (S)-3-hydroxy-gamma-butyrolactone |
| 04/06/2004 | US6717011 Chiral diazaphospholidine ligands |
| 04/06/2004 | US6716998 Such as (2r)-3,4-dihydro-2h-chromen-2-yl-methyl-4-methyl-benzenesulfonate; metathesis ring closing polymerization |
| 04/01/2004 | WO2004026469A1 Active catalysts for stereoselective ring-opening reactions |
| 04/01/2004 | WO2003095415A3 Aminated compounds bearing at least an allyl and a difluoromethyl and method used for synthesis thereof |
| 04/01/2004 | US20040063999 Process for the production of optically active amino alcohols |
| 04/01/2004 | CA2498893A1 Active catalysts for stereoselective ring-opening reactions |
| 03/31/2004 | EP1403262A1 Process for producing optically active alpha butyrolactone |
| 03/31/2004 | EP1401803A2 Method for producing chiral amino acid derivatives |
| 03/31/2004 | EP1401575A1 Hydroxylation of beta-dicarbonyls with zirconium catalysts |
| 03/31/2004 | EP1299401B1 Chiral ligands for asymmetric catalysis |
| 03/31/2004 | EP1289655A4 Novel chiral salen catalysts, and a process for preparing chiral compounds from racemic epoxides for using them |
| 03/31/2004 | EP1282620B1 Azabicyclic carbamates and their use as alpha-7 nicotinic acetylcholine receptor agonists |
| 03/31/2004 | EP1210324B1 Substituted cyclopentenes, their preparation and their use for chiral scaffolds |
| 03/30/2004 | US6713652 Alkali metal or alkaline earth metal hydroxide in the presence of a polyol or amino alcohol |
| 03/30/2004 | US6713435 Method for producing optically active lactone compounds by using salen cobalt complexes having a cis-β structure |
| 03/25/2004 | WO2004024934A1 Process for producing optically active erythro 3-cyclohexylserines |
| 03/25/2004 | WO2004024684A2 Enantioselective amination and etherification |